

#include <linux/string.h>

#include "lcm_drv.h"


// ---------------------------------------------------------------------------
//  Local Constants
// ---------------------------------------------------------------------------

#define FRAME_WIDTH  (320)
#define FRAME_HEIGHT (480)
#define LCM_ID       (0x8357)


// ---------------------------------------------------------------------------
//  Local Variables
// ---------------------------------------------------------------------------

static LCM_UTIL_FUNCS lcm_util = {0};

#define SET_RESET_PIN(v)    (lcm_util.set_reset_pin((v)))

#define UDELAY(n) (lcm_util.udelay(n))
#define MDELAY(n) (lcm_util.mdelay(n))


// ---------------------------------------------------------------------------
//  Local Functions
// ---------------------------------------------------------------------------

static __inline void send_ctrl_cmd(unsigned int cmd)
{
	lcm_util.send_cmd(cmd);
}

static __inline void send_data_cmd(unsigned int data)
{
	lcm_util.send_data(data);
}

static __inline unsigned int read_data_cmd()
{
    return 0xFF&lcm_util.read_data();
}

static __inline void set_lcm_register(unsigned int regIndex,
		unsigned int regData)
{
	send_ctrl_cmd(regIndex);
	send_data_cmd(regData);
}

static void init_lcm_registers(void)
{
#if 0
	send_ctrl_cmd(0x11); //Sleep Out
	MDELAY(300);

	send_ctrl_cmd(0xB4); //Set RM, DM
	send_data_cmd(0x00);

	send_ctrl_cmd(0xC8); //Set Gamma
	send_data_cmd(0x00);
	send_data_cmd(0x34);
	send_data_cmd(0x46);
	send_data_cmd(0x31);
	send_data_cmd(0x00);
	send_data_cmd(0x1A);
	send_data_cmd(0x12);
	send_data_cmd(0x34);
	send_data_cmd(0x77);
	send_data_cmd(0x13);
	send_data_cmd(0x0F);
	send_data_cmd(0x00);

	send_ctrl_cmd(0xD0); //Set Power
	send_data_cmd(0x51); //DDVDH  0X44
	send_data_cmd(0x42);
	send_data_cmd(0x0F); //VREG1  0X08

	send_ctrl_cmd(0xD1); //Set VCOM
	send_data_cmd(0x4F); //VCOMH
	send_data_cmd(0x1D); //VCOML

	send_ctrl_cmd(0xD2); //Set NOROW
	send_data_cmd(0x01); //SAP
	send_data_cmd(0x12); //DC10/00

	send_ctrl_cmd(0xE9); //Set Panel
	send_data_cmd(0x01);

	send_ctrl_cmd(0xEA); //Set STBA
	send_data_cmd(0x03);
	send_data_cmd(0x00);
	send_data_cmd(0x00);

	send_ctrl_cmd(0xEE); //Set EQ
	send_data_cmd(0x13);
	send_data_cmd(0x00);
	send_data_cmd(0x00);
	send_data_cmd(0x13);

	send_ctrl_cmd(0xED); //Set DIR TIM
	send_data_cmd(0x13);
	send_data_cmd(0x13);
	send_data_cmd(0xA2);
	send_data_cmd(0xA2);
	send_data_cmd(0xA3);
	send_data_cmd(0xA3);
	send_data_cmd(0x13);
	send_data_cmd(0x13);
	send_data_cmd(0x13);
	send_data_cmd(0x13);
	send_data_cmd(0xAE);
	send_data_cmd(0xAE);
	send_data_cmd(0x13);
	send_data_cmd(0xA2);
	send_data_cmd(0x13);

	send_ctrl_cmd(0x36);
	send_data_cmd(0x02);

	send_ctrl_cmd(0x3A);
	send_data_cmd(0x66);

	send_ctrl_cmd(0x51);//write display brightness
	send_data_cmd(0x70);//set brightness 0x00-0xff
	MDELAY(50);

	send_ctrl_cmd(0x53);//write ctrl display
	send_data_cmd(0x24);
	MDELAY(50);

	send_ctrl_cmd(0x55);
	send_data_cmd(0x01);//still picture
	MDELAY(50);

	send_ctrl_cmd(0x5e);//write CABC minumum brightness
	send_data_cmd(0x70);//
	MDELAY(50);

	send_ctrl_cmd(0xCA);  //Set UI GAIN
    send_data_cmd(0x24);
    send_data_cmd(0x24);
    send_data_cmd(0x24);
    send_data_cmd(0x23);
    send_data_cmd(0x23);
    send_data_cmd(0x23);
    send_data_cmd(0x22);
    send_data_cmd(0x22);
    send_data_cmd(0x22);
    send_data_cmd(0x22);

	send_ctrl_cmd(0x11);
	MDELAY(120);
#else
	MDELAY(10);
	send_ctrl_cmd(0x11);//Sleep Out
	MDELAY(120);

	send_ctrl_cmd(0xEE);//Set EQ
	send_data_cmd(0x02);
	send_data_cmd(0x01);
	send_data_cmd(0x02);
	send_data_cmd(0x01);

	send_ctrl_cmd(0xED);//Set DIR TIM
	send_data_cmd(0x00);
	send_data_cmd(0x00);
	send_data_cmd(0x9A);
	send_data_cmd(0x9A);
	send_data_cmd(0x9B);
	send_data_cmd(0x9B);
	send_data_cmd(0x00);
	send_data_cmd(0x00);
	send_data_cmd(0x00);
	send_data_cmd(0x00);
	send_data_cmd(0xAE);
	send_data_cmd(0xAE);
	send_data_cmd(0x01);
	send_data_cmd(0xA2);
	send_data_cmd(0x00);

	send_ctrl_cmd(0xB4);//Set RM, DM
	send_data_cmd(0x00);//

	send_ctrl_cmd(0xC0);  //Set Panel Driving
	send_data_cmd(0x10); //REV SM GS
	send_data_cmd(0x3B); // NL[5:0]
	send_data_cmd(0x00); //SCN[6:0]
	send_data_cmd(0x02); //NDL 0 PTS[2:0]
	send_data_cmd(0x11); //PTG ISC[3:0]

	send_ctrl_cmd(0xC8);//Set Gamma
	send_data_cmd(0x00);  //KP1,KP0
	send_data_cmd(0x46);  //KP3,KP2
	send_data_cmd(0x12);  //KP5,KP4
	send_data_cmd(0x20);  //RP1,RP0
	send_data_cmd(0x0c);  //VRP0  01
	send_data_cmd(0x00);  //VRP1
	send_data_cmd(0x56);  //KN1,KN0
	send_data_cmd(0x12);  //KN3,KN2
	send_data_cmd(0x67);  //KN5,KN4
	send_data_cmd(0x02);  //RN1,RN0
	send_data_cmd(0x00);  //VRN0
	send_data_cmd(0x0c);  //VRN1  01

	send_ctrl_cmd(0xD0);//Set Power
	send_data_cmd(0x44);//DDVDH :5.28
	send_data_cmd(0x44); // BT VGH:15.84    VGL:-7.92
	send_data_cmd(0x05);//VREG1  4.625V

	send_ctrl_cmd(0xD1);//Set VCOM
	send_data_cmd(0x4b); //VCOMH  3.367 //3B
	send_data_cmd(0x14);//VCOM  5.2725

	send_ctrl_cmd(0xD2);
	send_data_cmd(0x04);
	send_data_cmd(0x22); //12

	send_ctrl_cmd(0xD3);
	send_data_cmd(0x04);
	send_data_cmd(0x12);

	send_ctrl_cmd(0xD4);
	send_data_cmd(0x07);
	send_data_cmd(0x12);

	send_ctrl_cmd(0xE9); //Set Panel
	send_data_cmd(0x00);

	send_ctrl_cmd(0xC5); //Set Frame rate
	send_data_cmd(0x08);  //61.51Hz


	send_ctrl_cmd(0X0036);
	send_data_cmd(0X000a);

	send_ctrl_cmd(0X003A);
	send_data_cmd(0X0006);

	send_ctrl_cmd(0X002A);
	send_data_cmd(0X0000);
	send_data_cmd(0X0000);
	send_data_cmd(0X0001);
	send_data_cmd(0X003F);

	send_ctrl_cmd(0X002B);
	send_data_cmd(0X0000);
	send_data_cmd(0X0000);
	send_data_cmd(0X0001);
	send_data_cmd(0X00E0);
	MDELAY(120);

	send_ctrl_cmd(0x29); //Display On
	MDELAY(5);
#endif
}

// ---------------------------------------------------------------------------
//  LCM Driver Implementations
// ---------------------------------------------------------------------------

static void lcm_set_util_funcs(const LCM_UTIL_FUNCS *util)
{
	memcpy(&lcm_util, util, sizeof(LCM_UTIL_FUNCS));
}


static void lcm_get_params(LCM_PARAMS *params)
{
	memset(params, 0, sizeof(LCM_PARAMS));

	params->type   = LCM_TYPE_DBI;
	params->ctrl   = LCM_CTRL_PARALLEL_DBI;
	params->width  = FRAME_WIDTH;
	params->height = FRAME_HEIGHT;
	params->io_select_mode = 3;

	params->dbi.port                    = 0;
	params->dbi.clock_freq              = LCM_DBI_CLOCK_FREQ_104M;
	params->dbi.data_width              = LCM_DBI_DATA_WIDTH_18BITS;
	params->dbi.data_format.color_order = LCM_COLOR_ORDER_RGB;
	params->dbi.data_format.trans_seq   = LCM_DBI_TRANS_SEQ_MSB_FIRST;
	params->dbi.data_format.padding     = LCM_DBI_PADDING_ON_MSB;
	params->dbi.data_format.format      = LCM_DBI_FORMAT_RGB666;
	params->dbi.data_format.width       = LCM_DBI_DATA_WIDTH_18BITS;
	params->dbi.cpu_write_bits          = LCM_DBI_CPU_WRITE_32_BITS;
	params->dbi.io_driving_current      = LCM_DRIVING_CURRENT_8MA;

	params->dbi.parallel.write_setup    = 2;
	params->dbi.parallel.write_hold     = 2;
	params->dbi.parallel.write_wait     = 6;
	params->dbi.parallel.read_setup     = 3;
	params->dbi.parallel.read_latency   = 40;
	params->dbi.parallel.wait_period    = 0;

	// enable tearing-free
    params->dbi.te_mode                 = LCM_DBI_TE_MODE_VSYNC_ONLY;
    params->dbi.te_edge_polarity        = LCM_POLARITY_FALLING;
}


static void lcm_init(void)
{
	SET_RESET_PIN(0);
	MDELAY(25);
	SET_RESET_PIN(1);
	MDELAY(50);
	init_lcm_registers();

    //Set TE register
	send_ctrl_cmd(0x35);
	send_data_cmd(0x00);

    send_ctrl_cmd(0X0044);  // Set TE signal delay scanline
    send_data_cmd(0X0000);  // Set as 0-th scanline
    send_data_cmd(0X0000);
	//sw_clear_panel(0);
}


static void lcm_suspend(void)
{
	send_ctrl_cmd(0x10);
	MDELAY(120);
}


static void lcm_resume(void)
{
	send_ctrl_cmd(0x11);
	MDELAY(120);
}

static void lcm_update(unsigned int x, unsigned int y,
		unsigned int width, unsigned int height)
{
	unsigned short x0, y0, x1, y1;
	unsigned short h_X_start,l_X_start,h_X_end,l_X_end,h_Y_start,l_Y_start,h_Y_end,l_Y_end;

	x0 = (unsigned short)x;
	y0 = (unsigned short)y;
	x1 = (unsigned short)x+width-1;
	y1 = (unsigned short)y+height-1;

	h_X_start=((x0&0xFF00)>>8);
	l_X_start=(x0&0x00FF);
	h_X_end=((x1&0xFF00)>>8);
	l_X_end=(x1&0x00FF);

	h_Y_start=((y0&0xFF00)>>8);
	l_Y_start=(y0&0x00FF);
	h_Y_end=((y1&0xFF00)>>8);
	l_Y_end=(y1&0x00FF);

	send_ctrl_cmd(0x2A);
	send_data_cmd(h_X_start);
	send_data_cmd(l_X_start);
	send_data_cmd(h_X_end);
	send_data_cmd(l_X_end);

	send_ctrl_cmd(0x2B);
	send_data_cmd(h_Y_start);
	send_data_cmd(l_Y_start);
	send_data_cmd(h_Y_end);
	send_data_cmd(l_Y_end);

	send_ctrl_cmd(0x29);

	send_ctrl_cmd(0x2C);
}

void lcm_setbacklight(unsigned int level)
{
	if(level > 255) level = 255;
	send_ctrl_cmd(0x51);
	send_data_cmd(level);
}

static unsigned int lcm_compare_id(void)
{
	unsigned int id;
         send_ctrl_cmd(0xBF);  // SET password
         read_data_cmd();  //dummy read
	read_data_cmd();	//01
	read_data_cmd();	//62
	id= read_data_cmd(); //83
 	id= ( id<< 8 )  | read_data_cmd();	//57
	read_data_cmd(); //ff
    	return (LCM_ID == id)?1:0;
}

LCM_DRIVER hx8357b_lcm_drv =
{
    .name			= "hx8357b",
	.set_util_funcs = lcm_set_util_funcs,
	.get_params     = lcm_get_params,
	.init           = lcm_init,
	.suspend        = lcm_suspend,
	.resume         = lcm_resume,
	.update         = lcm_update,
	//.set_backlight	= lcm_setbacklight,
	.compare_id     = lcm_compare_id
};
